Sr Full Stack Engineer

Eightelevengroup

Summit (NJ)

Hybrid

USD 103,320 - 110,208

Full time

14 days+

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Benefits offered by this job

Hybrid work arrangement

Job summary

Eightelevengroup is seeking a Senior Full Stack Engineer in Summit, NJ for a hybrid role focused on automation tools within the product development team. You will own end-to-end development, manage cloud infrastructure (Azure preferred, AWS acceptable), design and connect APIs, and build frontend interfaces with React.

You will apply GenAI prompt engineering to ensure reliable AI-assisted workflows and collaborate with business and technology leadership to deliver impactful solutions.

Qualifications

5+ years of full stack engineering experience across backend, middle tier, and frontend.
Experience building and connecting APIs.
Cloud infrastructure setup for application development—Azure preferred, AWS acceptable.
Frontend development with React.
Hands-on GenAI prompt engineering to reduce hallucinations.
End-to-end delivery from infrastructure to interface.

Responsibilities

Own end-to-end delivery across backend, middle tier, and frontend for automation tool initiatives.
Stand up and manage cloud-based infrastructure (compute and database) to support application development (Azure preferred, AWS acceptable).
Design, build, and connect APIs to enable application functionality.
Develop and integrate frontend interfaces (React preferred) with backend services.
Utilize Python for data manipulation and processing tasks.
Apply GenAI prompt engineering practices to ensure consistent model outputs and minimize hallucinations.
Act as the technical anchor for the build and guide architecture for the product development team.

Skills

Full stack

APIs

GenAI

React

Python

End-to-end

Tools

Azure

AWS

Job description

Sr Full Stack Engineer

Summit, NJ

Hybrid Role

Compensation: $75 - $80 per hour

ABOUT THE ROLE

Our client, a Fortune 500 Consumer Packaged Goods (CPG) company, is seeking a Senior Full Stack Engineer to serve as the technical anchor and lead for automation tools within the product development team. This hybrid role, based in Summit, NJ, offers high-impact engagement and direct partnership with business and technology leadership. You will own end-to-end full stack development, including standing up and managing cloud infrastructure (compute and database), designing and connecting APIs, and building frontend interfaces with React. The role requires hands-on expertise in GenAI prompt engineering to ensure consistent, low-hallucination AI-assisted workflows. You will guide architecture and approach, integrating backend and frontend systems, and collaborate closely with cross-functional teams to deliver impactful solutions.

WHAT YOU'LL DO

Own end-to-end delivery across backend, middle tier, and frontend for automation tool initiatives
Stand up and manage cloud-based infrastructure (compute and database) to support application development (Azure preferred, AWS acceptable)
Design, build, and connect APIs to enable application functionality
Develop and integrate frontend interfaces (React preferred) with backend services
Utilize Python for data manipulation and processing tasks
Apply GenAI prompt engineering practices to ensure consistent, reliable model outputs and minimize hallucinations
Act as the technical anchor for the build, guiding architecture and technical approach for the product development team
Partner directly with business and technology leadership to deliver impactful solutions

WHAT YOU BRING

5+ years of full stack engineering experience with strong breadth across backend, middle tier, and frontend
Demonstrated experience building and connecting APIs
Experience standing up cloud-based infrastructure (compute and database) for application development - Azure preferred, AWS acceptable
Frontend development experience, React preferred
Python experience for data manipulation and processing
Hands-on GenAI prompt engineering experience, including techniques for producing consistent model outputs and mitigating hallucinations
Proven ability to work end-to-end, from infrastructure through interface

WHAT'S IN IT FOR YOU